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      10-03-2012, 11:58 PM   #7
pinoye90
Private First Class
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Drives: 07 328I e90 MT
Join Date: Dec 2011
Location: PHX

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I had the same problem and ppl kept saying its the gas cap but when I replaced it the light when back on after 10min of driving. Then after researching more I found out it was the vapor sensor which is common to going out on bmw's. I did a DIY on this forum on how to replace it. Cost can be about 200+ at the dealer to diagnose. I'm pretty sure that's what's throwing the code.